1 package simpleperf.example.kotlin
2 
3 import androidx.test.platform.app.InstrumentationRegistry
4 import androidx.test.ext.junit.runners.AndroidJUnit4
5 
6 import org.junit.Test
7 import org.junit.runner.RunWith
8 
9 import org.junit.Assert.*
10 
11 /**
12  * Instrumented test, which will execute on an Android device.
13  *
14  * See [testing documentation](http://d.android.com/tools/testing).
15  */
16 @RunWith(AndroidJUnit4::class)
17 class ExampleInstrumentedTest {
18     @Test
useAppContextnull19     fun useAppContext() {
20         // Context of the app under test.
21         val appContext = InstrumentationRegistry.getInstrumentation().targetContext
22         assertEquals("simpleperf.example.kotlin", appContext.packageName)
23     }
24 }